Amazing-Python-Scripts

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from tkinter import *
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import random
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GAME_WIDTH = 600
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GAME_HEIGHT = 600
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SPEED = 100
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SPACE_SIZE = 20
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BODY_PARTS = 3
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SNAKE_COLOUR = "#00FF00"
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FOOD_COLOUR = "#FF0000"
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BACKGROUND_COLOUR = "#000000"
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class Snake:
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    def __init__(self):
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        self.body_size = BODY_PARTS
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        self.coordinates = []
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        self.squares = []
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        for i in range(0, BODY_PARTS):
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            self.coordinates.append([0, 0])
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        for x, y in self.coordinates:
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            square = canvas.create_rectangle(
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                x, y, x + SPACE_SIZE, y + SPACE_SIZE, fill=SNAKE_COLOUR, tag="snake")
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            self.squares.append(square)
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class Food:
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    def __init__(self):
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        x = random.randint(0, (GAME_WIDTH/SPACE_SIZE)-1) * SPACE_SIZE
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        y = random.randint(0, (GAME_HEIGHT/SPACE_SIZE)-1) * SPACE_SIZE
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        self.coordinates = [x, y]
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        canvas.create_oval(x, y, x + SPACE_SIZE, y+SPACE_SIZE,
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                           fill=FOOD_COLOUR, tag="food")
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def next_turn(snake, food):
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    x, y = snake.coordinates[0]
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    if direction == 'up':
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        y -= SPACE_SIZE
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    elif direction == 'down':
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        y += SPACE_SIZE
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    elif direction == 'left':
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        x -= SPACE_SIZE
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    elif direction == 'right':
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        x += SPACE_SIZE
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    snake.coordinates.insert(0, (x, y))
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    square = canvas.create_rectangle(
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        x, y, x + SPACE_SIZE, y + SPACE_SIZE, fill=SNAKE_COLOUR)
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    snake.squares.insert(0, square)
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    if x == food.coordinates[0] and y == food.coordinates[1]:
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        global score
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        score += 1
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        label.config(text="Score: {}".format(score))
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        canvas.delete("food")
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        food = Food()
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    else:
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        del snake.coordinates[-1]
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        canvas.delete(snake.squares[-1])
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        del snake.squares[-1]
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    if check_collisons(snake):
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        game_over()
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    else:
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        window.after(SPEED, next_turn, snake, food)
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def change_direction(new_direction):
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    global direction
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    if new_direction == 'left':
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        if direction != 'right':
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            direction = new_direction
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    elif new_direction == 'right':
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        if direction != 'left':
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            direction = new_direction
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    if new_direction == 'up':
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        if direction != 'down':
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            direction = new_direction
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    if new_direction == 'down':
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        if direction != 'up':
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            direction = new_direction
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def check_collisons(snake):
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    x, y = snake.coordinates[0]
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    if x < 0 or x >= GAME_WIDTH:
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        return True
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    elif y < 0 or y >= GAME_HEIGHT:
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        return True
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    for body_part in snake.coordinates[1:]:
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        if x == body_part[0] and y == body_part[1]:
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            return True
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    return False
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def game_over():
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    # canvas.delete(ALL)
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    canvas.create_text(canvas.winfo_width()/2, canvas.winfo_height()/2,
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                       font=('consolas', 70), text="GAME OVER", fill="red", tag="gameover")
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    reset_button = Button(text="Restart", font=('consolas', 20), command=reset)
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    canvas.create_window(300, 400, window=reset_button)
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def reset():
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    score = 0
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    label.config(text="Score:{}".format(score))
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    canvas.delete(ALL)
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    snake = Snake()
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    food = Food()
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    next_turn(snake, food)
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window = Tk()
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window.title("Snake Game")
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window.resizable(False, False)
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score = 0
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direction = 'down'
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label = Label(window, text="Score:{}".format(score), font=('consolas', 40))
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label.pack()
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canvas = Canvas(window, bg=BACKGROUND_COLOUR,
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                height=GAME_HEIGHT, width=GAME_WIDTH)
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canvas.pack()
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window.bind('<Left>', lambda event: change_direction('left'))
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window.bind('<Right>', lambda event: change_direction('right'))
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window.bind('<Up>', lambda event: change_direction('up'))
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window.bind('<Down>', lambda event: change_direction('down'))
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snake = Snake()
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food = Food()
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next_turn(snake, food)
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window.mainloop()
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